Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/1247

Title: Controlling the coexistence of structural phases and the optical properties of gallium nanoparticles with optical excitation
Authors: MacDonald, K.F.
Fedotov, V.A.
Pochon, S.
Stevens, G.
Kusmartsev, F.V.
Zheludev, N.I.
Issue Date: 2003
Abstract: We have observed reversible structural transformations, induced by optical excitation at 1.55 micrometer, between the beta, gamma and liquid phases of gallium in self-assembled gallium nanoparticles, with a narrow size distribution around 50 nm, on the tip of an optical fiber. Only a few tens of nanowatts of optical excitation per particle are required to control the transformations, which take the form of a dynamic phase coexistence and are accompanied by substantial changes in the optical properties of the nanoparticle film. The time needed to achieve phase equilibrium is in the microsecond range, and increases critically at the transition temperature.
Description: This is a pre-print. It is also available at: http://arxiv.org/abs/cond-mat/0312464.
URI: https://dspace.lboro.ac.uk/2134/1247
Appears in Collections:Pre-Prints (Physics)

Files associated with this item:

File Description SizeFormat
0312464.pdf264.19 kBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.